Cited by 703MicroRNA in disease regulationMitochondrial Function and PathologyMetalloenzymes and iron-sulfur proteins

MicroRNA-210 Controls Mitochondrial Metabolism during Hypoxia by Repressing the Iron-Sulfur Cluster Assembly Proteins ISCU1/2

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Chan, Stephen Y., Zhang, Ying-Yi, Hemann, Craig, Mahoney, Christopher E., Zweier, Jay L., Loscalzo, Joseph·2009·Cell Metabolism

Abstract

Repression of mitochondrial respiration represents an evolutionarily ancient cellular adaptation to hypoxia and profoundly influences cell survival and function; however, the underlying molecular mechanisms are incompletely understood. Primarily utilizing pulmonary arterial endothelial cells as a representative hypoxic cell type, we identify the iron-sulfur cluster assembly proteins (ISCU1/2) as direct targets for repression by the hypoxia-induced microRNA-210 (miR-210). ISCU1/2 facilitate the assembly of iron-sulfur clusters, prosthetic groups that are critical for electron transport and mitochondrial oxidation-reduction reactions. Under in vivo conditions of upregulating miR-210 and repressing ISCU1/2, the integrity of iron-sulfur clusters is disrupted. In turn, by repressing ISCU1/2 during hypoxia, miR-210 decreases the activity of prototypical iron-sulfur proteins controlling mitochondrial metabolism, including Complex I and aconitase. Consequently, miR-210 represses mitochondrial respiration and associated downstream functions. These results identify important mechanistic connections among microRNA, iron-sulfur cluster biology, hypoxia, and mitochondrial function, with broad implications for cellular metabolism and adaptation to cellular stress.

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Crossref · 10.1016/j.cmet.2009.08.015

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  • HIF-1-mediated transcriptional upregulation of miR210 specifically inhibits Fe-S complex formation to alter mitochondrial bioenergetics and ROS production (Pasteur effect).

    “The coordinate metabolic changes caused by HIF-1 that alter mitochondrial function are attributable, in part, to the HIF-1-mediated transcriptional upregulation of microRNA 210 (miR210), which specifically inhibits Fe-S complex formation to alter mitochondrial bioenergetics and ROS production (Pasteur effect) (69).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [69]

  • During normoxia, forced expression of miR210 causes an increase in ROS generation.

    “Interestingly, during normoxia, forced expression of miR210 caused an increase in ROS generation (69, 81), possibly due to deficiencies in complex I that may promote electron leak in the presence of molecular oxygen.”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [69]

  • Enhanced ROS production is not a sustained event in hypoxia.

    “Nonetheless, experimental evidence suggests that enhanced ROS production is not a sustained event in hypoxia (69, 385).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [69]

  • Within mitochondria, miR-210 targets regulatory proteins that assist in the assembly of the complexes of the electron transport chain, and suppresses respiration.

    “Within mitochondria it targets regulatory proteins that assist in the assembly of the complexes of the electron transport chain, and suppresses respiration (103, 108).”

    From Placental Origins of Chronic Disease (2016) · cites this paper as [103]

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Authors
Chan, S. Y., Zhang, Y.-Y., Hemann, C., Mahoney, C. E., Zweier, J. L., & Loscalzo, J.
Affiliations
  • Harvard University (US)
  • The Ohio State University (US)
  • Brigham and Women's Hospital (US)
Corresponding author
Loscalzo, Joseph
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2009-10
Volume
10
Issue
4
Pages
273-284
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2087408461
Cited by
702
References
37
Citations by year
2026: 33 · 2025: 44 · 2024: 30 · 2023: 24 · 2022: 45 · 2021: 73 · 2020: 44 · 2019: 50 · 2018: 29 · 2017: 51 · 2016: 35 · 2015: 38 · 2014: 59 · 2013: 60 · 2012: 39
FWCI
9.61
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (n01hv28178-12-0-0)
  • U.S. Public Health Service (P01 81587)
  • National Heart, Lung, and Blood Institute (HL61795, K08HL096834, U54HL070819, P01HL081587, N01-HV-028178, R21HL089734, R01HL061795, R37HL061795)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Metalloenzymes and iron-sulfur proteins
Keywords
miR-210, iron-sulfur cluster assembly, hypoxia, mitochondrial metabolism, mitochondrial respiration, pulmonary artery endothelial cells, complex I, aconitase, iron-sulfur proteins
MeSH terms
Animals, Hypoxia, Cells, Cultured, Gene Expression Regulation, Humans, Iron-Sulfur Proteins, Mitochondria, Oxygen Consumption, Mice, Knockout, MicroRNAs, Endothelial Cells, Mice, Von Hippel-Lindau Tumor Suppressor Protein, Caspase 3, Caspase 7

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